Vaccum-cleaner.



G. SUPANZ.

VACUUM CLEANER.

APPLICATION FILED MAX/7.1914. mw wo Patented Apr. 11915 2 BHEETHHEET 1.25

22 Ezzgl 24 a G. SUPANZ.

VACUUM CLEANER.

APPLICATION FILED MAYI. 19:4.

Patented Apr. 6, 1915 2 SHEETS-BEBE? 8.

U j r GEORGSUPANZ, 0F VIENNA, AUSTRIA-HUNGARY.

VACUUM-CLEANER.

Specification of Letters Patent. A

Application filed may 7, 1914. Serial No. 837,091.

T all whom it may concern:

Be it known that I, Gnonc SUPANZ, painter on enamel, and a subject ofthe Emperor of Austria-Hungary, residing at Heindlgasse 3, Vienna, XVI,Austria-Hungary, have invented certain new and useful Improvements inVacuum-Cleaners, of which the following is a specification.

This invention relates to apparatus for re'movin dust and the like fromcarpets and other ob]ects by suction, and its object is to efi'ectcertain improvements in apparatus of this class.

One part of the invention consists in providing, in combination with asieve through which the stream of air is drawn, art-vanewheel carrying abrush whereby the sieve is swept, the wheel being turned by the stream Iof air.

group are slightly spaced apart.

nozzle 3, and at the rear with a housing 4 for an electric motor; themotor is not shown in the drawings.

A horizontal shaft 5 driven by the motor carries a fan 6, the vanes ofwhich are adapted to draw a stream of air through a hole 7 in a verticalwall 8 in the casing. On the other side of this wall the casing 2contains a stepped cylindrical sieve holder 9, which is removable fromthe casing and comprises three parts 9, 9", 9, of diflerent diameters,the part 9 of smallest diameter being nearest the hole 7, and the part 9of largest diameter being nearest the nozzle 3.

The sieve holder contains three groups of circular sieves 10, one groupin each of the parts 9, 9", 9. The sieves in each group'are of equalmesh, but the coarseness of mesh of the several groups decreases indirection of have rims 11, whereby the. sieves in'each At the intake endof the sieve holder 9 there is a respectively.

hollow cylindrical cover 12, forming part of the casing and fitted witha coarse detachable sieve- 13. A short shaft 14 is mounted at the centerof the sieve 13, and has mounted upon it a light vane wheel 15 withinthe cover 12, between the sieves 13 and 10, and the shaft 1-1 has acrank l4; in front of the sieve 13, to which is fitted a detachablebrush 16, adapted to sweep the sieve 13. Between the nozzle 3 and thesieve 13 there is a sieve 17, coarser than the sieve 13. One vane of thevane wheel 15 carries a conspicuously colored or white plate 18, whichin th course of the rotation of the wheel is carried past a window19'provided in the wall of the cover 12. 7

Above the fan 6 the casing has an outlet duct 20, to which is joined ahorizontal framework 21 of wire, forming a support for a filter bag 22under a removable cover 23, the front and rear walls of which consist ofsieves 24. The cover 23 is fixed to the casing 2 by means of bolts 25,which engage eyes 26 fixed to the cover and casing Thenozzle 3 base hook27 for attaching a suction pipe 'so that it will-not slip oif whenpulled,

For fixing the cover 12, arms 28. are p1yoted to the sieve holder 9, andterminate in hooks 29 adapted to engage hooks 30 on the rim of thecover. The cover 12'is attached to the casing by hooks 31.

by the sieve 17. The sieve 13 retains impurities of a less coarse natureand is con tinually swept by the brush 16, by WhlCll it is kept clearfor the passage of dust to the sieves 10, In proportion as the sieves 19in the part 9 of the holder 9 become clogged with dust, the speed of thevane wheel 15 decreases, until the wheel ultimately stops. The reductionof speed and stoppage can be observed through the window 19,throughwhich the plate 18 can be seen, and the user of the apparatus isthus enabled to judge when the sieves 10 require to be attended to. Forthis purpose he detaches the cover 12, and takes out the first sieve 10of the group Patented Apr. 6, 19115.

in the part 9, and whatever other sieves 10 may be clogged. Thisoperation may be repeated after the cleaning operation has beencontinued for a while.

Of course the sieves l0 nearer the nozzle 3 become clogged soonerthanthose which are more remote. The sieves in the first group 'must betaken out and cleaned or changed more often than those in the middlegroup, and the latter must be cleaned or changed more often than thosein the last group. As.

the sieves 10 are of different sizes, each fitting into a particularpart of the holder, no mistake is liable to occur in regard to theposition inwhich the sieves are re-inserted. The sieves belonging to thedifierent groups may also be differently colored. As the sieves arespaced apart by their rims 11 they may be used in a wet state, forexample saturated with a disinfectant solution, without detracting fromtheir efiiciency as filters.

The apparatus can be pulled along the ground by means of the pipe orflexible hose joined to the nozzle 3, and is not liable to fall over,the cylindrical casing being horizontal.

What I claim as my invention and desire to secure by Letters Patent ofthe United States is 1. In a vacuum cleaner the combination of a sieve,a vane wheel adjacent the rearward side of said sieve and adapted to berotated by a stream of air passing through said sieve, and a brushconnected to said vane wheel and sweeping the forward side of saidsieve.

2. In a vacuum cleaner the combination with a casing, of acover having awlndow, a sieve in said casing, a vane wheel ad] acent the rearward sideof said sieve and adapted to be rotated by a stream of air passingthrough said sieve, said vane wheel being visible through said window,and a brush connected to said vane wheel and sweeping the forward sideof said sieve.

3. In a vacuum cleaner the combination of a casing having a detachablecover, a series of fine sieves in said casing, a coarse sieve in saidcover, means for drawing a stream of air through said coarse sieve andfine sieves in series, a vane wheel mounted in said cover, and .a brushconnected to said vane wheel sweeping said coarse sieve.

4. In a vacuum cleaner the combination of a casing having a detachablecover, 'a series of fine sieves in said casing, a coarse sieve in saidcover, means for drawing a stream of air through'said coarse sieve andfine sieves in series, avane wheel mounted in said cover, and a brushconnected to said vane wheel sweeping said coarse sieve, said finesieves being divided in groups whose fineness of mesh increases in thedirection of the streamof air; v

5. In a vacuum cleanerthe combination of a casing having a detachablecover, a series sli htl s aced a art.

g y p GEORG SUPANZ. Witnesses:

' KARL HEISLER,

AUGUST FUGGER.

